Note: Descriptions are shown in the official language in which they were submitted.
CA 02758094 2011-10-06
DESCRIPTION
PASSENGER COMPARTMENT MATERIAL STRUCTURE
Technical Field
[0001] The present invention relates to a passenger compartment material
structure.
Background Art
[0002] In patent document 1, there is disclosed a ceiling material whose air-
impermeability is
ensured by a hot melt film.
[0003] Patent Document 1: JP-A No. 10-16660
Patent Document 2: JP-A No. 2002-67789
Patent Document 3: JP-A No. 2003-306131
SUMMARY OF INVENTION
[0004] Usually, the portion of a ceiling material that is connected to a
pillar garnish is set in
the lowest position in the ceiling material. For this reason, in a case where
dew condensation
has formed on the surface of a roof panel on a passenger compartment inner
side and water
resulting from this dew condensation has dropped onto the ceiling material,
this water flows
on the ceiling material toward the pillar garnish.
[0005] However, at the portion of the ceiling material that is connected to
the pillar garnish,
in a case where an end of an upholstery material on the pillar garnish side is
exposed, there is
the potential for the water that has reached the end of this upholstery
material to be sucked up
in the upholstery material because of, for example, capillary action or the
like and for this
water that has been sucked up to seep out to the passenger compartment inner
side of the
upholstery material. In this case, there is the problem that the
attractiveness of the ceiling
material deteriorates.
[0006] The present invention has been made in view of the above-described
problem, and it
is an object thereof to provide a passenger compartment material structure
that can inhibit the
attractiveness of a ceiling material from deteriorating.
[0007] In order to solve the above-described problem, a passenger compartment
material
structure pertaining to a first aspect of the present invention includes: a
ceiling material that
has, in a layered state, an upholstery material and a base material and an air
barrier film that
are disposed on a passenger compartment outer side with respect to the
upholstery material,
with the ceiling material covering a roof panel from a passenger compartment
inner side; a
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pillar garnish that is disposed along a lengthwise direction of a pillar that
supports the roof
panel from an underside of the roof panel, with the pillar garnish covering
the pillar from the
passenger compartment inner side; and a water guide portion that is disposed
separately from
or integrally with the air barrier film, is positioned on the passenger
compartment outer side
with respect to the pillar garnish, projects to a lower end portion side of
the pillar garnish
with respect to an end of the upholstery material on the pillar garnish side,
and overlaps the
pillar garnish in the lengthwise direction of the pillar. Further, in order to
solve the above-
described problem, a passenger compartment material structure pertaining to a
second aspect
of the present invention includes: a ceiling material that has, in a layered
state, an upholstery
material, a base material that is disposed on a passenger compartment outer
side with respect
to the upholstery material, and an air barrier film that is disposed on the
passenger
compartment outer side with respect to the base material, with the ceiling
material covering
the a panel from a passenger compartment inner side; a pillar garnish that is
disposed along a
lengthwise direction of a pillar that supports the roof panel from an
underside of the roof
panel, with the pillar garnish covering the pillar from the passenger
compartment inner side;
and a water guide member that is disposed between the base material and the
upholstery
material, wherein the water guide member has a water guide portion that is
positioned on the
passenger compartment outer side with respect to the pillar garnish, projects
to a lower end
portion side of the pillar garnish with respect to an end of the upholstery
material on the pillar
garnish side, and overlaps the pillar garnish in the lengthwise direction of
the pillar.
[0008] According to this passenger compartment material structure, even in a
case where
dew condensation has formed on the surface of the roof panel on the passenger
compartment
inner side, water resulting from this dew condensation has dropped onto the
ceiling material,
and this water has flowed on the ceiling material toward the pillar garnish,
this water can be
inhibited by the inhibiting portion from reaching the end of the upholstery
material on the
pillar garnish side. Because of this, the water can be inhibited from seeping
out to the
passenger compartment inner side of the upholstery material, so the
attractiveness of the
ceiling material can be inhibited from deteriorating.
[0009]
[0010]
[0011]
[0012]
[0013]
[0014]
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[0015]
[0016]
[0017] As described in detail above, according to the present invention, water
can be
inhibited by the inhibiting portion from reaching the end of the upholstery
material on the
pillar garnish side. Because of this, the water can be inhibited from seeping
out to the
passenger compartment inner side of the upholstery material, so the
attractiveness of the
ceiling material can be inhibited from deteriorating.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] FIG 1 is a perspective view showing a passenger compartment material
structure
pertaining to a first embodiment of the present invention as seen from a
passenger
compartment inner side;
FIG 2 is a view showing a state in which a pillar garnish has been detached
from the
passenger compartment material structure shown in FIG. 1;
FIG. 3 is a perspective view showing the passenger compartment material
structure
shown in FIG. 1 as seen from a passenger compartment outer side;
FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. 3;
FIG. 5 is a view showing a modification of the passenger compartment material
structure shown in FIG. 4;
FIG. 6 is a view showing a modification of the passenger compartment material
structure shown in FIG 4;
FIG 7 is a view showing a modification of the passenger compartment material
structure shown in FIG. 4;
FIG. 8 is a view showing a modification of the passenger compartment material
structure shown in FIG 4;
FIG. 9 is a perspective view showing a passenger compartment material
structure
pertaining to a second embodiment of the present invention as seen from the
passenger
compartment outer side;
FIG. 10 is a cross-sectional view taken along line 10-10 in FIG. 9;
FIG. 11 is a view showing a modification of the passenger compartment material
structure shown in FIG. 10;
FIG. 12 is a perspective view showing a passenger compartment material
structure
pertaining to a third embodiment of the present invention as seen from the
passenger
compartment outer side;
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FIG. 13 is a cross-sectional view taken along line 13-13 in FIG. 12;
FIG. 14 a perspective view showing a passenger compartment material structure
pertaining to a fourth embodiment of the present invention as seen from the
passenger
compartment outer side;
FIG, 15 is a cross-sectional view taken along line 15-15 in FIG. 14; and
FIG 16 is a cross-sectional view of a passenger compartment material structure
pertaining to a comparative example.
DESCRIPTION OF EMBODIMENTS
[0019] [First Embodiment]
To begin, a first embodiment of the present invention will be described.
[0020] As shown in FIG. 1 and FIG. 2, a passenger compartment material
structure 10
pertaining to the first embodiment of the present invention is equipped with a
ceiling material
12, a pillar garnish 14, and a water guide member 16.
[0021] The ceiling material 12 covers a roof panel 18 from a passenger
compartment inner
side. A front pillar 20 supports the roof panel 18 from an underside of the
roof panel 18, and
the pillar garnish 14 is disposed along a lengthwise direction of this front
pillar 20 and covers
this front pillar 20 from the passenger compartment inner side.
[0022] As shown in FIG. 3 and FIG. 4, a connecting portion 22 is formed on the
pillar garnish
14 side of the ceiling material 12, and a connecting portion 24 is formed on
the ceiling
material 12 side of the pillar garnish 14. The connecting portion 24 is
positioned on the
passenger compartment inner side with respect to the connecting portion 22 and
is
superimposed on the connecting portion 22. Further, the connecting portions 22
and 24 are
positioned lower than a main body portion 26 of the ceiling material 12.
[0023] As shown in FIG. 4, the ceiling material 12 has, in a layered state, an
upholstery
material 28, a base material 30, and an air barrier film 32. The base material
30 is disposed
on a passenger compartment outer side with respect to the upholstery material
28, and the air
barrier film 32 is disposed on the passenger compartment outer side with
respect to the base
material 30.
[0024] The base material 30 is configured by, for example, a heat insulating
material such as
rigid urethane foam, and the upholstery material 28 is configured by, for
example, a
nonwoven fabric, a knit, a fabric, or the like. Further, the air barrier film
32 is configured by,
for example, resin, paper, or the like.
[0025] The water guide member 16 is configured separately from the air barrier
film 32 and
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is adhered in a state of tight adhesion to a surface 32A of this air barrier
film 32 on the
passenger compartment outer side. This water guide member 16 is positioned on
the
passenger compartment outer side with respect to the pillar garnish 14 and has
a water guide
portion 34 serving as an inhibiting portion.
[0026] The water guide portion 34 projects to a lower end portion side of the
pillar garnish 14
with respect to an end 28A of the upholstery material 28 on the pillar garnish
14 side and
overlaps this pillar garnish 14 in the lengthwise direction of the front
pillar 20. That is, the
overlap length (projecting length) of this water guide portion 34 is a length
Ll
[0027] The water guide member 16 is formed by resin molding or is configured
to have
flexibility, and the water guide member 16 follows the shape of the connecting
portion 20 and
is disposed integrally with this connecting portion 22.
[0028] Next, the action and effects of the first embodiment of the present
invention will be
described.
[0029] First, in order to make the action and effects of the first embodiment
of the present
invention clearer, a comparative example will be described. A passenger
compartment
material structure 70 pertaining to a comparative example shown in FIG. 16 is
given a
configuration where the water guide member 16 is omitted with respect to the
passenger
compartment material structure 10 pertaining to the first embodiment of the
present
invention.
[0030] In the passenger compartment material structure 70 pertaining to this
comparative
example, in a case where dew condensation has formed on a surface 18A of the
roof panel 18
on the passenger compartment inner side and water W resulting from this dew
condensation
has dropped onto the ceiling material 12, this water flows on the surface 32A
of the air barrier
film 32 on the passenger compartment outer side toward the pillar garnish 14.
[0031] However, at the connecting portion 22, the end 28A of the upholstery
material 28 on
the pillar garnish 14 side is exposed. For this reason, there is the potential
for the water W
' that has reached the end 28A of this upholstery material 28 to be sucked up
in the upholstery
material 28 because of, for example, capillary action or the like and for this
water W that has
been sucked up to seep out to the passenger compartment inner side of the
upholstery
material 28 (there is the potential for seeping water W1 of the water to
form). In this case,
there is the problem that the attractiveness of the ceiling material 12
deteriorates.
[0032] In contrast, according to the passenger compartment material structure
10 pertaining
to the first embodiment of the present invention, as shown in FIG. 4, even in
a case where the
water W has flowed on the surface 32A of the air barrier film 32 on the
passenger
CA 02758094 2011-10-06
compartment outer side toward the pillar garnish 14, the water guide portion
34 guides the
water W to the pillar garnish 14, so the water W can be inhibited from
reaching the end 28A
of the upholstery material 28 on the pillar garnish 14 side. Because of this,
the water W can
be inhibited from seeping out to the passenger compartment inner side of the
upholstery
material 28, so the attractiveness of the ceiling material 12 can be inhibited
from
deteriorating.
[0033] In the present embodiment, the water guide member 16 is disposed on the
passenger
compartment outer side with respect to the air barrier film 32, but as shown
in FIG. 5 the
water guide member 16 may also be disposed between the base material 30 and
the air barrier
film 32.
[0034] Further, as shown in FIG. 6, the water guide member 16 may also be
disposed
between the base material 30 and the upholstery material 28. In this case,
when a long
overlap length L2 between the water guide member 16 and the upholstery
material 28 is
ensured, the water W can be inhibited from traveling from an end 30A of the
base material 30
through the inside of the base material 30 and reaching the upholstery
material 28 from an
upper end 16A side of the water guide member 16, so this is preferred.
[0035] Further, in the present embodiment, the air barrier film 32 is disposed
on the
passenger compartment outer side with respect to the base material 30, but as
shown in FIG. 7
and FIG. 8 the air barrier film 32 may also be disposed between the base
material 30 and the
upholstery material 28.
[0036] Further, in this case, the water guide member 16 may be disposed
between the base
material 30 and the air barrier film 32 as shown in FIG. 7 or may be disposed
between the air
barrier film 32 and the upholstery material 28 as shown in FIG. 8.
[0037] According to the above modifications also, the water guide member 34
guides the
water W to the pillar garnish 14, so the water W can be inhibited from
reaching the end 28A
of the upholstery material 28 on the pillar garnish 14 side.
[0038] Further, in the above-described embodiment, the distal end side of the
water guide
portion 34 is away from the pillar garnish 14, but the water guide portion 34
may be
configured to have flexibility overall so that its distal end side deforms
toward the pillar
garnish 14 side because of self-weight and contacts this pillar garnish 14.
[0039] [Second Embodiment]
Next, a second embodiment of the present invention will be described.
[0040] A passenger compartment material structure 40 pertaining to the second
embodiment
of the present invention shown in FIG. 9 and FIG. 10 is one in which the water
guide member
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16 is omitted with respect to the passenger compartment material structure 10
pertaining to
the first embodiment of the present invention described above and is given the
following
configuration.
[0041] That is, the portion of the air barrier film 32 on the pillar garnish
14 side extends
(projects) to the lower end portion side of the pillar garnish 14 with respect
to the end 28A of
the upholstery material 28 on the pillar garnish 14 side, and this extension
portion is a water
guide portion 44 serving as an inhibiting portion (that is, the water guide
portion 44 is
disposed integrally with the air barrier film 32).
[0042] Further, the water guide portion 44 overlaps the pillar garnish 14 in
the lengthwise
direction of the front pillar 20. That is, the overlap length (projecting
length) of this water
guide portion 44 is a length L3.
[0043] According to this configuration also, as shown in FIG. 10, in a case
where the water
W has flowed on the surface 32A of the air barrier film 32 on the passenger
compartment
outer side toward the pillar garnish 14, the water guide portion 44 guides the
water W to the
pillar garnish 14, so the water W can be inhibited from reaching the end 28A
of the
upholstery material 28 on the pillar garnish 14 side. Because of this, the
water W can be
inhibited from seeping out to the passenger compartment inner side of the
upholstery material
28, so the attractiveness of the ceiling material 12 can be inhibited from
deteriorating.
[0044] In the present embodiment, the air barrier film 32 that has the water
guide portion 44
is disposed on the passenger compartment outer side with respect to the base
material 30, but
as shown in FIG 11 the air barrier film 32 may also be disposed between the
base material 30
and the upholstery material 28.
[0045] According to this modification also, the water guide portion 44 guides
the water W to
the pillar garnish 14, so the water W can be inhibited from reaching the end
28A of the
upholstery material 28 on the pillar garnish 14 side.
[0046] [First Reference Example]
Next, a first reference example will be described.
[0047] A passenger compartment material structure 50 pertaining to the first
reference
example shown in FIG. 12 and FIG. 13 is one in which a cover member 54 serving
as an
inhibiting portion is used instead of the water guide member 16 with respect
to the passenger
compartment material structure 10 pertaining to the first embodiment of the
present invention
described above.
[0048] The cover member 54 is configured by, for example, a resin molded
product, a film,
or the like and has preventiveness. This cover member 54 is formed in a cross-
sectional C
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shape, and the connecting portion 22 of the ceiling material 12 (the portion
of the ceiling
material 12 on the pillar garnish 14 side) is inserted inside this cover
member 54.
[0049] Further, this cover member 54 is tightly adhered to the air barrier
film 32. Moreover,
the overlap length between the cover member 54 and the upholstery material 28
is a length
L4.
[0050] According to this configuration, even in a case where the water W has
flowed on the
surface 32A of the air barrier film 32 on the passenger compartment outer side
toward the
pillar garnish 14, the cover member 54 guides the water to the pillar garnish
14 while
blocking the water, so the water W can be inhibited from reaching the end 28A
of the
upholstery material 28 on the pillar garnish 14 side. Because of this, the
water W can be
inhibited from seeping out to the passenger compartment inner side of the
upholstery material
28, so the attractiveness of the ceiling material 12 can be inhibited from
deteriorating.
[0051] Further, the connecting portion 22 of the ceiling material 12 is
inserted into the cover
member 54, whereby the connecting portion 22 of this ceiling material 12 can
be protected.
[0052] The cover member 54 may also be tightly adhered to the upholstery
material 28 in
addition to the air barrier film 32. By doing this, the cover member 54
becomes fitted
together with the connecting portion 22 of the ceiling material 12, so the
connecting portion
22 of this ceiling material 12 can be reinforced.
[0053] [Second Reference Example]
Next, a second reference example will be described.
[0054] A passenger compartment material structure 60 pertaining to the second
reference
example shown in FIG. 14 and FIG 15 is one in which a water absorbing member
64 serving
as an inhibiting portion is used instead of the water guide member 16 with
respect to the
passenger compartment material structure 10 pertaining to the first embodiment
of the present
invention described above.
[0055] The water absorbing member 64 is configured by, for example, by a
sponge, a
nonwoven fabric, or the like and is disposed on the surface 32A of the air
barrier film 32 on
the passenger compartment outer side. Further, the water absorbing member 64
is spaced a
length L5 with respect to the end 12A of the ceiling material 12 on the pillar
garnish 14 side
and has a volume sufficient enough to be able to absorb a quantity of water
assumed
beforehand.
[0056] According to this configuration, even in a case where the water W has
flowed on the
surface 32A of the air barrier film 32 on the passenger compartment outer side
toward the
pillar garnish 14, the water absorbing member 64 absorbs the water, so the
water W can be
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inhibited from reaching the end 28A of the upholstery material 28 on the
pillar garnish 14
side. Because of this, the water W can be inhibited from seeping out to the
passenger
compartment inner side of the upholstery material 28, so the attractiveness of
the ceiling
material 12 can be inhibited from deteriorating.
[0057] Embodiments of the present invention and modifications thereof have
been described
above, but the present invention is not limited to the above description and
is of course
capable of being modified and implemented in a variety of ways other than what
has been
described above in a range not departing from the gist thereof.
[0058] Further, in each of the embodiments described above, the passenger
compartment
material structures 10, 40, 50, and 60 are applied in regard to the ceiling
material 12 and the
pillar garnish 14 that covers the front pillar 20, but they may also be
applied in regard to the
ceiling material 12 and a pillar garnish that covers another pillar (e.g., a
center pillar, a rear
pillar, etc.).
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